This build is mainly for soloing mission (void or non void), lets you deal around 1M finisher damage on a non infested, and 2M finisher damage on infested. This build would be MUCH better with the arcane trickery augment on both your syandana and helmet which grants you 20% chance of going invisible after a finisher (radial blind allows you to do 100% finisher attacks).

Weapon
Any Longsword type weapon is fine

Warframe,
you could swap primed continuity with narrow minded if you don't mind the decrease in range for radial blind.

almost all excals use this build, just letting you know mine, which is not very different from other builds

This build is pure CC/Support, with max range, high duration, and simulor+rapid firing guns to destroy nullifier bubbles, also a dagger for its covert lethality mod for instant killing enemies with a finisher.

Weapons, you could swap telos akbolto with anything rapid firing or sonicor, and any dagger fitted with a covert lethality mod will be fine.
Synoid simulor's sphere can get inside the nullifier's globe so you can set up sphere traps and wait for it to get near the nullifier inside the globe and then you can detonate it to kill the nullifier.
The dagger will alow you to finisher kill anything that is humanoid.
i like high status stuff, you don't have to use all the dual stat mods, could swap them for pure damage mods instead.

Warframe, a normal continuity is also fine, you could still put in constitution if you fell like the duration is lacking a bit. You could always swap Corrosive Projection for Energy Siphon if that makes you more comfortable.

Not many Excals are using this kind of build since the EB was introduced and the nerf to radial blind not being able to flash through walls anymore, but DE fixed that gameplay with the new Parkour build, so run around and spot enemies(scouting) then after a couple of seconds from the first enemy that you've just spotted, use Radial Blind.